Outboard help.

[piemma]

Originally Posted by thefishingfreak

The pisser works all the time regardless of operating temp that's the first sign it's not getting cooling water. Most probable cause is blocked pisser tube, poke a paper clip in the end an make sure it's clear. If you can, disconnect it and blow thru it. If the pisser hose it truly clean and not pissing, then you have a problem possibly impeller dry rotted? Or just plain old?
Posted from my iPhone/Mobile device

Absolutely correct. The pisser pisses regardless of the Thermostats.
I'm betting a clogged tube (Billy Nolan and I both had that problem a few years ago when we were crawling into the shallows and s#^&#^&#^&#^&#^&g up sand, mud and seaweed) or the impeller is shot. I change my impeller every year and the thermostat every other year.

[Rockfish9]

Mud dauber wasps LOVE to make nests in the tell tale... just pull the hose off of the tell tale, and see if you have water pressure...some of those engins have poppet ( pressure control ) valves... that can stick and cause an issue... anyone that grubs around in the shallows should change their pumps and T-stats every two years... if you do it when you re register, you will have a build in reminder..

[fishsmith]

The comments here on SB are great, for more reading, here are some links I've used in the past for many a motor woe:

Mastertech Marine: Mercury, Johnson, Evinrude, Force, Chrysler, Tohatsu, Nissan, Yamaha Outboard Motor Troubleshoot5ing Guides

BoaterEd